Traction has always been my nemesis. To be fair, if the surface is very good, it would grip in 4th to hold a reasonable amount of power....such surfaces are rare though. Certainly any airfields here, or roads are almost all shite ! So there have probably only been a handful of occasions where it has seen decent grip in 4th on road type surfaces.
Although I never really have spent too much time playing with suspension to try and make a difference. Just never get the time to spend at venues to do that.
A good warm sunny day at Elvington wouldnt be too bad, but even the last few events there, weather has just been ok.
60-100 would be a very low increment for me due to traction and gearing. But best I can find here was back in 2016 at a local airfield with 265 Westlake Sport RS's. Strangely that day it was gripping better than it ever did on an asphalt airfield/surface and normal road tyres. That seen 2.9s 60-100 although that's 2nd going into 3rd. Traction control was still active throughout the entire 1/4 mile run so whilst it was my best run on normal tyres and normal surface....it still never gripped properly anywhere during the run. I've gotten close to that with 888's on one or two occasions but those cheap ass Westlakes were just better. And as they were cheap, didnt mind doing burnouts, which did help a little too, but it was also easy to overdo the burnout which did make the runs slower.
Last time at Santa Pod before the clutch slipped that dropped to 2.4s but on proper tyres, still a 2-3 shift. 2nd only goes to about 85-90mph, and 3rd would be a little tall to start as low as 60mph for a single gear pull.
It'll be next year before I can try anything with the TriAce tyres now, but as mentioned earlier, they definitely feel soft so hopefully they'll be good.
I also see on another forum a few guys praising those Extreme remould tyres from Poland as very grippy for light track and hillclimb type use. Any prices I've seen seem high for remoulds though, and they also dont have particularly high speed ratings, which in this day and age could have legal issues for a road car regardless of speed limits.